[ 4350.504066][T22505] gre: GRE over IPv4 demultiplexor driver
[ 4352.572470][T22528] ip_gre: GRE over IPv4 tunneling driver
[ 4379.142307][T22781] ping (22781) used greatest stack depth: 22424 bytes left
[ 4413.363657][T23101] ip6_gre: GRE over IPv6 tunneling driver
[ 4456.371220][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4462.131102][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4467.122118][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4473.139101][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!